Buddy List Classification

[lijukarolil]

Hi,
I want to make the buddy list classified. That is to a list of students and to a list of teachers. A student will get only his teachers in the chat list and vice versa. But now all the registered members are listed in everyone's chat list. How can I make the two sections? Any inbuilt option in arrowchat for this or I want to customize the code? If so, where can I get the part of the code.? Please help..